CVE-2022-49611 (GCVE-0-2022-49611)

Vulnerability from cvelistv5 – Published: 2025-02-26 02:23 – Updated: 2026-05-23 15:22
VLAI
Title
x86/speculation: Fill RSB on vmexit for IBRS
Summary
In the Linux kernel, the following vulnerability has been resolved: x86/speculation: Fill RSB on vmexit for IBRS Prevent RSB underflow/poisoning attacks with RSB. While at it, add a bunch of comments to attempt to document the current state of tribal knowledge about RSB attacks and what exactly is being mitigated.
Severity
5.5 (Medium)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Assigner
Linux CNA under the mitre root
CNA scorecard D 53/100 over 6665 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: b9cdaaf0a3becc52e8b4662fef28c452c4f009b4 , < 3d323b99ff5c8c57005184056d65f6af5b0479d8 (git)
Affected: 117cc7a908c83697b0b737d15ae1eb5943afe35b , < f744b88dfc201bf8092833ec70b23c720188b527 (git)
Affected: 117cc7a908c83697b0b737d15ae1eb5943afe35b , < 17a9fc4a7b91f8599223631bb6ae6416bc0de1c0 (git)
Affected: 117cc7a908c83697b0b737d15ae1eb5943afe35b , < 4d7f72b6e1bc630bec7e4cd51814bc2b092bf153 (git)
Affected: 117cc7a908c83697b0b737d15ae1eb5943afe35b , < 8d5cff499a6d740c91ff37963907e0e983c37f0f (git)
Affected: 117cc7a908c83697b0b737d15ae1eb5943afe35b , < 8c38306e2e9257af4af2819aa287a4711ff36329 (git)
Affected: 117cc7a908c83697b0b737d15ae1eb5943afe35b , < 9756bba28470722dacb79ffce554336dd1f6a6cd (git)
Affected: 68d1f7a3f1a35639a563bbad768d5df885b4ff05 (git)
Affected: 20e080e2752d108388d386ecc0b33d7797dfb18f (git)
Affected: eebc3f8adee0a6f43a4789ef0bf5c5b35de8cfe4 (git)
Affected: c1ddd99a029636e234a800f28790a60d6ac0318f (git)
Affected: 4.14.14 , < 4.14.297 (semver)
Affected: 3.2.101 , < 3.3 (semver)
Affected: 3.16.56 , < 3.17 (semver)
Affected: 4.4.113 , < 4.5 (semver)
Affected: 4.9.77 , < 4.10 (semver)
guessed Create a notification for this product.
Linux Linux Affected: 4.15
Unaffected: 0 , < 4.15 (semver)
Unaffected: 4.14.297 , ≤ 4.14.* (semver)
Unaffected: 4.19.266 , ≤ 4.19.* (semver)
Unaffected: 5.4.217 , ≤ 5.4.* (semver)
Unaffected: 5.10.133 , ≤ 5.10.* (semver)
Unaffected: 5.15.57 , ≤ 5.15.* (semver)
Unaffected: 5.18.14 , ≤ 5.18.* (semver)
Unaffected: 5.19 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
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          {
            "lang": "en",
            "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/speculation: Fill RSB on vmexit for IBRS\n\nPrevent RSB underflow/poisoning attacks with RSB.  While at it, add a\nbunch of comments to attempt to document the current state of tribal\nknowledge about RSB attacks and what exactly is being mitigated."
          },
          {
            "lang": "es",
            "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: x86/speculation: Fill RSB on vmexit for IBRS Prevenir ataques de envenenamiento/subdesbordamiento de RSB con RSB. Mientras tanto, agregue una serie de comentarios para intentar documentar el estado actual del conocimiento tribal sobre los ataques RSB y qu\u00e9 se est\u00e1 mitigando exactamente."
          }
        ],
        "id": "CVE-2022-49611",
        "lastModified": "2026-06-17T05:18:37.537",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "LOCAL",
                "availabilityImpact": "HIGH",
                "baseScore": 5.5,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "NONE",
                "privilegesRequired": "LOW",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                "version": "3.1"
              },
              "exploitabilityScore": 1.8,
              "impactScore": 3.6,
              "source": "nvd@nist.gov",
              "type": "Primary"
            }
          ]
        },
        "published": "2025-02-26T07:01:36.553",
        "references": [
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/17a9fc4a7b91f8599223631bb6ae6416bc0de1c0"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/3d323b99ff5c8c57005184056d65f6af5b0479d8"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/4d7f72b6e1bc630bec7e4cd51814bc2b092bf153"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/8c38306e2e9257af4af2819aa287a4711ff36329"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/8d5cff499a6d740c91ff37963907e0e983c37f0f"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/9756bba28470722dacb79ffce554336dd1f6a6cd"
          },
          {
            "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "tags": [
              "Patch"
            ],
            "url": "https://git.kernel.org/stable/c/f744b88dfc201bf8092833ec70b23c720188b527"
          }
        ],
        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Analyzed",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "NVD-CWE-noinfo"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Moderate",
      "current_release_date": "2026-06-29T21:13:11+00:00",
      "cve": "CVE-2022-49611",
      "id": "CVE-2022-49611",
      "initial_release_date": "2022-01-01T00:00:00+00:00",
      "product_status:fixed": "415",
      "product_status:known_affected": "166",
      "product_status:known_not_affected": "76",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: x86/speculation: Fill RSB on vmexit for IBRS",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2022/cve-2022-49611.json",
      "version": "3"
    }
  }
}



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